//-----------------------------------------------------------------------
// <copyright file="InvokerTest.cs" company="NMock2">
//
//   http://www.sourceforge.net/projects/NMock2
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.
// </copyright>
// This is the easiest way to ignore StyleCop rules on this file, even if we shouldn't use this tag:
// <auto-generated />
//-----------------------------------------------------------------------
namespace NMock2.Test.Monitoring
{
    using System.Reflection;
    using NUnit.Framework;
    using NMock2.Monitoring;
    using NMock2.Test.Monitoring;

    [TestFixture]
    public class InvokerTest
    {
        public interface IFoo
        {
            void Foo();
        }

        public interface IOther
        {
            void Other();
        }

        public class MockFoo : IFoo
        {
            public bool FooWasInvoked = false;

            public void Foo()
            {
                FooWasInvoked = true;
            }
        }

        public static readonly MethodInfo FOO_METHOD = typeof(IFoo).GetMethod("Foo");
        public static readonly MethodInfo OTHER_METHOD = typeof(IOther).GetMethod("Other");
        
        
        private object receiver;
        private MockFoo target;
        private MockInvokable next;
        private Invoker invoker;
        
        [SetUp]
        public void SetUp()
        {
            receiver = new object();
            target = new MockFoo();
            next = new MockInvokable();
            invoker = new Invoker(typeof(IFoo), this.target, this.next);
        }

        [Test]
        public void InvokesMethodOnObjectIfMethodIsDeclaredInSpecifiedType()
        {
            Invocation invocation = new Invocation(receiver, FOO_METHOD, new object[0]);
            
            invoker.Invoke(invocation);

            Assert.IsTrue(target.FooWasInvoked, "Foo should have been invoked on target");
        }

        [Test]
        public void ForwardsInvocationsToNextIfMethodIsNotDeclaredInSpecifiedType()
        {
            Invocation invocation = new Invocation(receiver, OTHER_METHOD, new object[0]);
            
            next.Expected = invocation;
            
            invoker.Invoke(invocation);

            Assert.IsFalse(target.FooWasInvoked, "should not have invoked method on target");
            Assert.AreSame(invocation, next.Actual, "should have passed invocation to next in chain");
        }
    }
}
